133454879 has 16 divisors (see below), whose sum is σ = 149402880. Its totient is φ = 118465920.

The previous prime is 133454869. The next prime is 133454899. The reversal of 133454879 is 978454331.

133454879 = 92² + 93² + ... + 737².

It is a cyclic number.

It is not a de Polignac number, because 133454879 - 2⁴ = 133454863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133454869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84164 + ... + 85734.

It is an arithmetic number, because the mean of its divisors is an integer number (9337680).

Almost surely, 2^133454879 is an apocalyptic number.

133454879 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

133454879 is a deficient number, since it is larger than the sum of its proper divisors (15948001).

133454879 is a wasteful number, since it uses less digits than its factorization.

133454879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870.

The product of its digits is 362880, while the sum is 44.

The square root of 133454879 is about 11552.2672666451. The cubic root of 133454879 is about 511.0281437670.

The spelling of 133454879 in words is "one hundred thirty-three million, four hundred fifty-four thousand, eight hundred seventy-nine".